Page 819 - Veterinary Immunology, 10th Edition
P. 819
VetBooks.ir Failures in Vaccination
There are many reasons why a vaccine may fail to confer protective
immunity on an animal (Fig. 25.1).
FIG. 25.1 A simple classification of the ways in which vaccination
may fail to protect an animal against disease.
Failure to Vaccinate
Most cases of vaccine failure result from unsatisfactory or
incomplete administration of the vaccine or noncompliance with
manufacturer's recommendations. For example, a live vaccine may
819
